The single mom of three, who accessorized with futuristic-looking sunglasses, was joined by ex-boyfriend Scott Disick for the beach day. The amicable exes spent time together while playing on the beach and in the ocean with their three kids — Mason, 6, Penelope, 4, and Reign, 21 months.

Kardashian’s trip to Miami comes on the heels of her European getaway with mom Kris Jenner. The reality star returned to the States for New York Fashion Week on Friday, September 9, where she was spotted working a black cutout dress.

The E! personality's famous sisters Khloé and Kim Kardashian are also in Miami. The trio are currently filming KUWTK, and on Tuesday, September 13, dined at Komodo.

“Back with my main chick! Abigail! Tawanda!” Khloé, 32, captioned an Instagram photo of her and Kourtney en route to dinner.

For the night out, Kourtney worked her toned legs in a white slip dress while Khloé stayed in her skinny jeans and the double duster coat ensemble she wore on the plane from Los Angeles earlier that afternoon.

While Disick opted out of Kourtney’s European getaway with Jenner and the kids earlier this month, the self-proclaimed Lord has been traveling with his family more often as of late. This past June, Kourtney and the kids joined Disick in Las Vegas, where he had a hosting gig at 1 OAK.